For me only the “full comedy” films are real comedies. Many Spags contain some comedy parts, but they are still no comedies at all.
The Trinitys are definitely comedies, but for me e.g. the first Halleluja isn’t one (for example there are still many killings), while the sequel could be described as one. Most of Carninmeo’s Spags contain some comedy elements. Actually more and more with every film he made. But for me it is the second Halleluja which crosses the border, and his last 2 Spags, the 2 Tresette films are doubtless comedies.
My Name is Nobody is half a comedy, and half a “serious” western, at least unlike the Trinity films it is not throughout a comedy, but often only viewed as such.
In the end there are many Spags which are borderline films, and one must decide for himself which are comedies and which are not.
Apart from the Trinitys Clucher made 2 more comedy westerns. Others are the 2 Provvidenza films, or Tessari’s Alive or Preferably Dead, or Ben and Charlie, or Cipolla Colt, or Tedeum, or …